Did you install version 0.32.0 or did you use the latest development version from here: http://sumo.dlr.de/wiki/Downloads#SUMO_-_Latest_Development_Version ?
You can obtain queue-length using the lanearea detector: http://sumo.dlr.de/wiki/Simulation/Output/Lanearea_Detectors_(E2) A good measure of congestion is time loss. A global value can be obtained by activating the statistics output: http://sumo.dlr.de/wiki/Simulation/Output#Aggregated_Traffic_Measures regards, Jakob 2018-04-11 19:33 GMT+02:00 Rahimi, Tariq Rahim < tariqrahim.rah...@rockets.utoledo.edu>: > I appreciate your response, > > > I installed the newer version just yesterday and I am still getting > waitSteps in the Tripinfo output and I don't get any waitingTime. > > > Additionally, where can I get a good measure of queue length and > congestion? > > > Thank you, > > > * ------------------------------------- Tariq R Rahimi* > > ------------------------------ > *From:* Jakob Erdmann <namdre.s...@googlemail.com> > *Sent:* Tuesday, April 10, 2018 3:00:19 AM > *To:* Rahimi, Tariq Rahim > *Cc:* Sumo project User discussions > *Subject:* Re: A question about timestep and tau > > Hello, > The value of waitSteps counts the number of simulation steps in which a > vehicle was waiting. So if your vehicle waits for 3 seconds and you > simulation with --step-length 0.2 that would be 15 waitSteps. > In the latest development version, the attribute waitSteps is replaced > with waitingTime which is measured in seconds. (http://sumo.dlr.de/wiki/ > ChangeLog#Git_master > <https://urldefense.proofpoint.com/v2/url?u=http-3A__sumo.dlr.de_wiki_ChangeLog-23Git-5Fmaster&d=DwMFaQ&c=heEcP2AsrLOv4XP8e7I9NA&r=hcDhabDH71qjaXA3guxceND6Pl-jLmH9TuxEWZxKw1xUdKLCB6do1p6Q6bjgl8Fe&m=WFYrbGGcPNeSYHOh2KWsVWWO3Zdu-Yc8HIH8OxM9TG4&s=pxZRu4YuCEwEuwWk0S20Sc4c4N1nUWfSyE6vtpXjt7Q&e=> > ). > > The value of tau determines the desired time-headway between successive > vehicles. The exact usage of this value depends on the car following model > (see http://sumo.dlr.de/wiki/Definition_of_Vehicles,_ > Vehicle_Types,_and_Routes#Car-Following_Models > <https://urldefense.proofpoint.com/v2/url?u=http-3A__sumo.dlr.de_wiki_Definition-5Fof-5FVehicles-2C-5FVehicle-5FTypes-2C-5Fand-5FRoutes-23Car-2DFollowing-5FModels&d=DwMFaQ&c=heEcP2AsrLOv4XP8e7I9NA&r=hcDhabDH71qjaXA3guxceND6Pl-jLmH9TuxEWZxKw1xUdKLCB6do1p6Q6bjgl8Fe&m=WFYrbGGcPNeSYHOh2KWsVWWO3Zdu-Yc8HIH8OxM9TG4&s=ReunekgtCFa-RhcSIXd0kvHxyEyDHtxhdFyogahxqlU&e=> > ) > > To model different perception-reaction times, see > http://sumo.dlr.de/wiki/Car-Following-Models#Model_Parameters > <https://urldefense.proofpoint.com/v2/url?u=http-3A__sumo.dlr.de_wiki_Car-2DFollowing-2DModels-23Model-5FParameters&d=DwMFaQ&c=heEcP2AsrLOv4XP8e7I9NA&r=hcDhabDH71qjaXA3guxceND6Pl-jLmH9TuxEWZxKw1xUdKLCB6do1p6Q6bjgl8Fe&m=WFYrbGGcPNeSYHOh2KWsVWWO3Zdu-Yc8HIH8OxM9TG4&s=BL5SFhMbMbhdbrBaFVX7lFagcvGK1aOtCHt_MpQ2RKc&e=> > > regards, > Jakob > > > > 2018-04-10 2:50 GMT+02:00 Rahimi, Tariq Rahim <TariqRahim.Rahimi@rockets. > utoledo.edu>: > > Hello everyone, > > > When I output the tripinfo, it says waitSteps= an integer value. How can I > get this or the total waiting time for each vehicle in seconds? Also, how > can I calculate a queue length? > > > What is the concept of time Step? when I generate a route file with 12 > vehicles departing at the same time step but in different time frame, such > as the first vehicle departs at 0 seconds, the second at 3rd second, the > third one in 6th second but they all are departing at the same time step. > Here, the time step in 9 seconds. 10 minutes later, there are 5 vehicles > departing at the same time step and the time step there becomes 5 seconds. > > > What can I make of time step if I want to calculate the waiting time at an > intersection? > > > Also, any ideas on what does tau trigger? what file can I find it's source > code and what functions are related to it? I want to simulate different > perception-reaction times (0.5 second, 1 second, 2 seconds), How should I > go for it? > > > Thank you, > > > * ------------------------------------- Tariq R Rahimi* > Graduate Student > > >
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